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>From what I can see was this package version only in -proposed, it didn't migrate to the regular release archives (possibly automatically blocked by this issue?) There's a new upload now in -proposed, https://bugs.launchpad.net/ubuntu/+source/fftw3/3.3.5-3, which claims to fix a typo related to shlibs. Could you please check whether this resolves your issue or if it is an unrelated problem? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to fftw3 in Ubuntu. https://bugs.launchpad.net/bugs/1654707 Title: Cant upgrade: "add stricter shlib dependencies " ends with supposed broken dependencies Status in fftw3 package in Ubuntu: New Bug description: The upgrade to 3.3.5-2 is impossible: warns about broken dependecies, but they are not identified. fftw3 (3.3.5-2) unstable; urgency=medium * add stricter shlib dependencies for partial upgrades (Closes: #849593) * mark libfft3-mpi-dev m-a same and libfftw3-doc m-a foreign -- Julian Taylor <jtaylor.deb...@googlemail.com> Fri, 06 Jan 2017 18:44:49 +0100 Looks like that " add stricter shlib dependencies for partial upgrades " is the root cause of the upgrade failure. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: libfftw3-double3 3.3.5-1 ProcVersionSignature: Ubuntu 4.9.0-11.12-generic 4.9.0 Uname: Linux 4.9.0-11-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.4-0ubuntu1 Architecture: amd64 CurrentDesktop: GNOME Date: Sat Jan 7 06:02:28 2017 Dependencies: gcc-6-base 6.3.0-2ubuntu1 libc6 2.24-7ubuntu2 libgcc1 1:6.3.0-2ubuntu1 libgomp1 6.3.0-2ubuntu1 SourcePackage: fftw3 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fftw3/+bug/1654707/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp